CN108302685B

CN108302685B - Air circulation system having internal air circulation, discharge and suction functions

Info

Publication number: CN108302685B
Application number: CN201710677026.3A
Authority: CN
Inventors: 金良镇; 柳浩南
Original assignee: Lisang Inc
Current assignee: Lisang Inc
Priority date: 2016-08-11
Filing date: 2017-08-09
Publication date: 2021-07-16
Anticipated expiration: 2037-08-09
Also published as: KR20180017840A; KR101860454B1; CN108302685A

Abstract

The present invention provides an air circulation system having circulation, discharge and suction functions of internal air, in which an operation mode may be manually set by a user or an air duct control unit may be automatically driven through an input program according to a condition sensed by a sensor to be performed as an air cleaner circulating only the internal air by controlling opening/closing of an air inlet duct or an air outlet duct, to be operated as an air suction mode or an air discharge mode, or to be operated as an air suction and discharge mode. The speed and air flow can also be controlled according to the operation mode by turning on/off fans installed at the lower and upper positions of the apparatus, respectively.

Description

Air circulation system having internal air circulation, discharge and suction functions

Cross Reference to Related Applications

This application claims the benefit of korean patent application No. 10-2016-0102279, filed on 8/11/2016, the entire disclosure of which is incorporated herein by reference.

Technical Field

The present invention relates to an air circulation system, and more particularly, to an air circulation system having circulation, discharge, and suction functions of internal air to function as an air cleaner only by circulating the internal air according to a desired purpose, use, or situation, to operate as an air suction mode or an air discharge mode, or to operate as an air suction and discharge mode.

Background

Windows installed in buildings allow interior personnel to view the exterior and provide natural lighting to the interior. The window also ventilates the indoor air when the indoor air becomes dirty or polluted. These windows are in the form of sliding or hinged windows and are dimensioned to be mounted in a window frame. When the window is opened to ventilate the indoor air, the indoor air is ventilated through the opened window for a short time. However, during the time when ventilation is performed through the opened window, there is a problem in that external noise, exhaust gas, smoke, dust, yellow dust, pollen, fine dust, and the like enter the inside without being filtered, thereby polluting indoor air. Further, during winter, when indoor air needs to be ventilated by opening a window, cold outdoor air enters the inside, causing the indoor temperature to be lowered. This creates another problem of causing additional energy loss by operating the heating system to raise the reduced indoor temperature.

Further, recently, as time for indoor activities has increased, awareness of the importance of indoor environment and indoor air has increased. The higher the air tightness of the windows of a public house or office, the less energy is lost. However, since the ventilation amount becomes small, deterioration of indoor air quality cannot be avoided. In order to purify polluted indoor air, many different air purifiers have been used. However, since the air purifier purifies polluted indoor air while blocking inflow of outdoor air and repeatedly circulates only the air inside, there is a problem in that efficiency thereof is lowered.

Technologies for solving the above problems include, for example, korean patent registration No. 476156 entitled "Window with ventilation apparatus" and korean patent registration No. 1237259 entitled "Window-type ventilation apparatus equipped with filter and heat exchanger with internal air purification function" with the registration of Window-type ventilation apparatus equipped with filter and heat exchanger for purifying air. However, these patents also have the following problems:

first, since it is impossible to completely block the outside air inlet and outlet, when the outside air contains yellow dust or fine dust, the yellow dust and fine dust enter the inside even if filtering is performed using a very good filter.

Second, since the outside air inlet and outlet cannot be completely blocked, when the wind is strong and the wind pressure becomes high, a positive pressure is generated, and thus the howling wind sound is transmitted to the inside through the duct through the outside air inlet and outlet, generating serious noise inside. Further, even if the fan is turned on to discharge air, the air discharge may not be properly performed to allow the air to flow back into the room.

Third, in order to reduce energy loss, since the total heat exchanger is installed to heat-exchange the inside air to be discharged to the outside with the outside air to be introduced into the inside, the ventilation apparatus needs to be disassembled to replace the heat exchanger, and thus it is inconvenient to maintain and repair the heat exchanger. Also, it is impossible to replace the heat exchanger with another heat exchanger such as a total heat exchanger, a sensible heat exchanger, etc., which is different in function and kind according to the purpose of using the ventilating device.

Disclosure of Invention

Accordingly, an object of the present invention is to solve the above-mentioned problems and to provide an air circulation system having a circulation, discharge and suction function of internal air, which controls opening or closing of an inlet duct or an outlet duct by manually setting an operation mode by a user or automatically driving an air duct controller through an input program according to a condition sensed by a sensor to function as an air cleaner by circulating the internal air only, to operate as an air suction mode or an air discharge mode, or to operate as an air suction and discharge mode.

Another object of the present invention is to provide an air circulation system having circulation, discharge and suction functions of internal air to control speed and air flow by opening/closing fans installed at a lower position and an upper position, respectively, according to an operation mode, and to enable replacement of internal main parts without disassembly of the entire apparatus by modularizing the main parts to be attachably/detachably constructed in a state where the apparatus is installed, thereby allowing easy maintenance and repair of the parts.

According to an embodiment of the present invention, there is provided an air circulation system having circulation, discharge and suction functions of internal air, including: a housing having an air vent at a lower portion of a front of the housing facing the inside for discharging inside air, an air supply inlet at an upper portion of the front of the housing for supplying air, an outside air suction inlet at a lower portion of a rear of the housing facing the outside for sucking outside air, and an air discharge outlet at an upper portion of the rear of the housing for discharging air to the outside; an air suction fan having a first fan and a first filter module and located between the air supply inlet and the air discharge outlet; an air discharge fan having a third fan and a second filter module and located between the air vent and the outside air suction port; a heat exchange module located between the outside air suction inlet and the air discharge outlet; a first driving unit located at a side portion facing the outside below the air suction fan to drive the first duct control unit to open/close the air discharge outlet; a second driving unit located at a side portion facing an outside above the air discharge fan to drive the second duct control unit to open/close the outside air suction port; and a power supply unit and a controller for supplying power to the air circulation system and controlling the operation of the air circulation system.

Preferably, the air circulation system further comprises: an interior sensor and an exterior sensor for collecting information of the interior air and the exterior air, respectively.

Preferably, the heat exchange module, the first filter module and the second filter module are attachably/detachably mounted to the case, the first filter module is located between the first fan and the second fan, and the second filter module is located between the third fan and the fourth fan.

Preferably, the air intake fan further includes a second fan such that the first filter module is located between the first fan and the second fan, the air discharge fan further includes a fourth fan such that the second filter module is located between the third fan and the fourth fan, and the air intake fan and the air discharge fan are respectively controlled to independently operate.

The invention has the advantages of

In the air circulation system of the present invention, based on information (PM2.5, CO) collected by the external sensor and the internal sensor₂Temperature, humidity, etc.), the operation mode may be manually set by a user, or the air duct control unit is automatically driven by an input program according to circumstances to circulate the inside air by being performed as an air cleaner by controlling the opening/closing of the air inlet or the air outlet to operate as an air suction mode or an air discharge mode, or to operate as an air suction and discharge mode. The speed and air flow can also be controlled by turning on/off fans installed at the lower and upper positions of the apparatus, respectively, according to the operation mode.

Further, since the main components are modularized into an attachable/detachable configuration, only a necessary module can be replaced in a room without disassembling the entire apparatus in a case where the apparatus is installed. Therefore, the components can be replaced with functional devices such as a manual filter, an active filter (an electro-precipitation filter, an anion generator, etc.), a heater module, etc. according to the purpose of use. Further, since the heat exchanger module can be replaced with a sensible heat exchanger or a total heat exchanger and a simple air duct module without heat exchange can be used, it is easy to maintain and repair components.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:

FIG. 1 is a cross-sectional view of an air circulation system according to the present invention;

FIG. 2 illustrates operation and air flow when operating the air circulation system in an internal air circulation mode;

FIG. 3 illustrates operation and air flow when operating the air circulation system in a suction and discharge mode;

FIG. 4 illustrates operation and air flow when operating the air circulation system in the suction mode;

FIG. 5 illustrates operation and air flow when operating the air circulation system in a discharge mode; and

fig. 6 shows an external appearance of the heat exchange module.

[ reference numerals for members in the drawings ]

11: air vent 12: air supply inlet

13: outside air intake port 14: air outlet

21: first fan 22: second fan

23: first filter module 25: third fan

26: fourth fan 27: second filter module

31: first drive unit 32: first pipeline control unit

35: the second drive unit 36: second pipeline control unit

41: heat exchange module

51: internal sensor 52: external sensor

61: power supply unit and controller

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown, so that those skilled in the art can readily practice the invention.

The air circulation system according to the invention is technically characterized in that: the air circulation system is operable with a purification function of internal air, an intake and discharge function, an intake function, and a discharge function by adjusting the air passage control unit according to the purpose, use, and situation of use; and the main components are modularized into an attachable/detachable configuration to be internally replaced without disassembling the entire apparatus in a case where the apparatus is installed.

The air circulation system of the present invention comprises: an air vent 11 and an air supply inlet 12 located at the front of the housing (profile) facing the inside, an outside air intake 13 and an air discharge outlet 14 located at the rear of the housing facing the outside, and other components located in the housing, an air intake fan, an air discharge fan, a heat exchange module 41, first and

second drive units

31 and 35, and a power supply unit and a controller 61.

An air vent 11 for discharging the inside air is located at a lower portion of a front portion of the housing (profile), and an air supply inlet 12 for supplying air to the inside is located at an upper portion of the front portion of the housing. An outside air suction port 13 for sucking outside air is located at a lower portion of the rear of the case. An air discharge outlet 14 for discharging air to the outside is located at an upper portion of the rear of the housing. The air vent 11 is located below the air exhaust fan, and the air supply inlet 12 is located above the air intake fan. The outside air suction inlet 13 is located above the air discharge fan, and the air discharge outlet 14 is located below the air suction fan. The air discharge outlet 14 for discharging the inside air to the outside and the outside air suction inlet 13 for sucking the outside air may have a cover at the outside thereof for opening or closing to prevent foreign substances from entering from the outside.

An air suction fan for sucking air into the inside is installed between the air supply inlet 12 and the air discharge outlet 14 and mainly includes a first fan 21 and a first filter module 23, wherein the first fan 21 is installed adjacent to the air supply inlet 12. The air intake fan may further include a second fan 22 to increase the air flow. When the air intake fan includes two fans, a first filter module 23 for filtering air is located between the first fan 21 and the second fan 22.

An air discharge fan for discharging the inside air is installed between the air vent 11 and the outside air suction port 13 and mainly includes a third fan 25 and a second filter module 27, wherein the second filter module 27 is installed near the air vent 11. The air-discharge fan may further include a fourth fan 26 to increase the air flow. When the air exhaust fan includes two fans, a second filter module 27 for filtering air exhausted in the interior is located between the third fan 25 and the fourth fan 26.

Since the air suction fan and the air discharge fan are separately controlled to independently operate and the first fan 21, the second fan 22, the third fan 25, and the fourth fan 26 are also controlled to independently operate, the air flow is controlled by controlling the speed and operation of each fan, and thus the air is effectively ventilated according to the situation.

The power/control line contact terminals are located at the interior of the housing in which the first and

second filter modules

23, 27 are located. The power and control signals are transmitted to the module through the power/control line contact terminals. The filter module may be replaced with a functional device such as a manual filter, an active filter (an electro-precipitation filter, an anion generator, etc.), a heater module, etc. according to the purpose of use. The first filter module 23 and the second filter module 27 may use the same filter, however, different types of filters may also be used. Further, since the filter is in the form of an attachable/detachable module, it is replaced in the front of the housing, and thus maintenance and repair thereof are very easy.

A heat exchange module 41 configured to exchange heat between the outside air and the inside air is installed between the outside air suction port 13 and the air discharge outlet 14. Since the heat exchange module 41 is modularized, it can be replaced with a sensible heat exchange module or a total heat exchange module according to the purpose of use or purpose. It is also possible to use simple air duct modules without heat exchange. Since the heat exchange module 41 is in the form of an attachable/detachable mounted module, it can be replaced in the front of the housing, and thus its maintenance and repair are very easy.

Fig. 6 shows an external appearance of the heat exchange module 41. The rear side of the heat exchange module 41 at the rear of the housing is in the shape of a rectangle (with respect to fig. 6) having a small width, which is a certain height (which is the longer side in the upward direction with respect to the other figures when positioned in use). The front side of the heat exchange module 41 at the front of the case has a rectangular shape with a relatively large width having a certain height. Each expansion unit is tapered to connect the front side and the rear side. When the heat exchange module 41 is located in the case, the expansion units of the heat exchange module 41 are positioned to vertically face each other, and both the front and rear sides thereof are flat surfaces.

The first driving unit 31 is installed at the rear of the case below the air suction fan to control the operation of the first duct control unit 32. The first duct control unit 32 opens or closes the air discharge outlet 14 at the rear of the case and the duct of the intake air fan through the heat exchange module 41 according to the operation mode.

A second driving unit 35 is installed at the rear of the housing above the air discharge fan to control the operation of the second duct control unit 36. The second duct control unit 36 opens or closes the outside air suction port 13 at the rear of the case and a duct discharging air to the heat exchange module 41 by the air discharging fan according to the operation mode.

The power supply unit and controller 61 is used to supply power to each component of the air circulation system and to control the program operation by sensors or the operation by user request.

The interior sensor 51 and the exterior sensor 52 collect information of the interior air and the exterior air, respectively. Such as a PM2.5 sensor, CO can be selectively installed according to the purpose of use₂Various sensors such as a sensor, a temperature sensor, and a humidity sensor.

The mode of operation of the air circulation system according to the invention will be described below:

an air circulation mode for circulating only the inside air will be described with reference to fig. 2. When the air circulation system operates in the air circulation mode, the first and second

duct control units

32 and 36 block and close the air discharge outlet 14 through which the external air is discharged and the external air suction port 13 through which the external air is introduced. When the third fan 25 and the fourth fan 26 are operated and negative pressure is generated in the air vent 11, the interior air enters to pass through the second filter module 27. Since the air vent 13 is blocked, air is supplied to the heat exchange module 41. Since the air discharge outlet 14 is blocked, the air passing through the heat exchange module 41 flows toward the air intake fan to be filtered in the first filter module 23 to be supplied to the inside through the air supply inlet 12. This operation serves to circulate only the inside air, and therefore, when the circulated air passes through the second filter module 27 and the first filter module 23, the pollution elements are removed to purify the inside air.

The air intake and discharge operation mode will be described with reference to fig. 3. When the air circulation system operates in the air intake and discharge operation mode, the front ends of the first and second

duct control units

32 and 36 are in contact with the outer surface of the expansion unit of the heat exchange module 14 to be fixed in position and to open the outside air intake port 13 and the air discharge outlet port 14. Then, the external air enters through the external air suction port 13 by the operation of the air suction fan and passes through the heat exchange module 41, so that the temperature of the external air is transferred to the heat exchanger, and the air enters the inside through the second fan 22, the first filter module 23, the first fan 21, and the air supply inlet 12. Further, when the inside air passes through the fourth fan 26, the second filter module 27, the third fan 25, and the heat exchange module 41 by the negative pressure at the air vent 11 by the operation of the air-discharge fan, heat exchange with the outside air is performed to discharge the inside air to the air-discharge outlet 14.

The air intake operation mode will be described with reference to fig. 4. When the air circulation system operates in the air intake operation mode, the first duct control unit 32 blocks the air discharge outlet 14 to be closed and the second duct control unit 36 closes the duct exhausting to the heat exchange module 41 through the air discharge fan and blocks the air vent 11, so that the operation of the air discharge fan is stopped and only the air intake fan operates. Then, when the first fan 21 and the second fan 22 are operated, the external air enters from the external air suction port 13 by a negative pressure. The external air enters the inside through the air supply inlet 12 by passing through the second fan 22, the first filter module 23, and the first fan 21 in sequence. Only pure outside air is supplied to the inside, and heat exchange is not performed in the heat exchange module 41.

The air-discharge operation mode will be described with reference to fig. 5. When the air circulation system operates in the air discharge operation mode, the second duct control unit 36 blocks the outside air inlet 13 to be closed and the first duct control unit 32 closes the duct entering the air suction fan through the heat exchange module 41 and blocks the air supply inlet 12, so that the operation of the air suction fan is stopped and only the air discharge fan operates. Then, when the third fan 25 and the fourth fan 26 are operated, the inside air is discharged from the air vent 11 by the negative pressure. The inside air is discharged to the outside through the air discharge outlet 14 by passing through the fourth fan 26, the second filter module 27, and the third fan 25 in sequence. Only pure inside air is supplied to the outside, and heat exchange is not performed in the heat exchange module 41.

The invention has been described using preferred exemplary embodiments. It will be understood, however, that the scope of the invention is not limited to the disclosed embodiments. Rather, the scope of the present invention is intended to include modifications and alternative arrangements within the ability of those skilled in the art to use current known or future technology and equivalents.

Simple variants or similar arrangements of the invention belong to the category of the invention and the scope of protection of the invention will therefore be apparent from the claims.

Claims

1. An air circulation system having circulation, discharge and suction functions of internal air, which is installed in a window frame, the air circulation system comprising:

a housing having an air vent (11) for discharging internal air and located at a lower portion of a front of the housing facing the inside, an air supply inlet (12) for supplying air and located at an upper portion of the front of the housing, an external air suction inlet (13) for sucking external air and located at a lower portion of a rear of the housing facing the outside, and an air discharge outlet (14) for discharging air to the outside and located at an upper portion of the rear of the housing;

an air suction fan having a first fan (21) and a first filter module (23) and located between the air supply inlet (12) and the air discharge outlet (14);

an air-discharge fan having a third fan (25) and a second filter module (27), and located between the air vent (11) and the outside-air suction port (13);

a heat exchange module (41) located between the outside air intake (13) and the air discharge outlet (14);

a first driving unit (31) located at a side portion facing the outside below the air suction fan to drive a first duct control unit (32) to open/close the air discharge outlet (14);

a second driving unit (35) located at a side portion facing the outside above the air-discharge fan to drive a second duct control unit (36) to open/close the outside air suction port (13); and

a power supply unit and a controller (61) for supplying power to the air circulation system and controlling the operation of the air circulation system,

a rear side of the heat exchange module (41) at a rear of the case has a rectangular shape with a relatively small width having a certain height, a front side of the heat exchange module (41) at a front of the case has a rectangular shape with a relatively large width having a certain height, and an expansion unit of the heat exchange module (41) is tapered to connect the front and rear sides,

the first driving unit (31) controls the operation of the first duct control unit (32), the first duct control unit (32) opening or closing the air discharge outlet (14) at the rear of the case and a duct entering the air suction fan through the heat exchange module (41) according to an operation mode,

the second driving unit (35) controls the operation of the second duct control unit (36), the second duct control unit (36) opening or closing the outside air suction port (13) at the rear of the case and a duct discharging air to the heat exchange module (41) by the air discharging fan according to an operation mode,

the air suction fan and the air discharge fan are separately controlled to independently operate.

2. The air circulation system of claim 1, further comprising: an internal sensor (51) and an external sensor (52) for collecting information of the internal air and the external air, respectively.

3. The air circulation system according to claim 1, wherein the heat exchange module (41), the first filter module (23) and the second filter module (27) are attachably/detachably mounted to the housing.

4. An air circulation system according to claim 1, wherein the air intake fan further comprises a second fan (22), the first filter module (23) is located between the first fan (21) and the second fan (22), the air exhaust fan further comprises a fourth fan (26), and the second filter module (27) is located between the third fan (25) and the fourth fan (26).